At first, congratulations a bout this successful application.
This will steal me some nights 
If its possible for me i'll try to support you.
I tested the openRemoteBoss 2.0 with my iPad2 and my KNX environment at home.
1) After I had deploying/syncing the app to my iPad I was able to start it for the first time.
I needed to enter my contoller IP (AutoDiscover hasn't work). My contoller is installed on my iMac (10.6).
After the application was synced to the device I was able to see my before designed button. Yeah great!
But I cannot change some settings. I thought i should be able to reenter some settings like controller ip or something else?
2) I also wonder where I can enter my KNX IP Gateway address. In the tutorial there is only defined a name, nothing more.
Should have AutoDiscover find the propper IP ?? I have an eibmarkt N00401 Gateway. Have I understand something wrong? Where can i find some Information about that. Or who can give me a short hint.
Regards
Norman